diff --git a/pom.xml b/pom.xml
index acaedf0..288b7d1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -41,13 +41,7 @@
             <artifactId>pagehelper</artifactId>
             <version>5.2.0</version>
         </dependency>
-        <!-- https://mvnrepository.com/artifact/com.google.android/android -->
-        <dependency>
-            <groupId>com.google.android</groupId>
-            <artifactId>android</artifactId>
-            <version>4.1.1.4</version>
-            <scope>provided</scope>
-        </dependency>
+
         <!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
         <dependency>
             <groupId>com.google.code.gson</groupId>
@@ -74,6 +68,12 @@
             <artifactId>log4j</artifactId>
             <version>1.2.12</version>
         </dependency>
+        <dependency>
+            <groupId>com.vaadin.external.google</groupId>
+            <artifactId>android-json</artifactId>
+            <version>0.0.20131108.vaadin1</version>
+            <scope>compile</scope>
+        </dependency>
 
     </dependencies>
 
diff --git a/src/main/java/com/update/update/UpdateApplication.java b/src/main/java/com/update/update/UpdateApplication.java
index aebb0c1..4a0b0cf 100644
--- a/src/main/java/com/update/update/UpdateApplication.java
+++ b/src/main/java/com/update/update/UpdateApplication.java
@@ -1,10 +1,15 @@
 package com.update.update;
 
 
+
 import org.mybatis.spring.annotation.MapperScan;
+
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
+
+import javax.sql.DataSource;
+
 @SpringBootApplication
 @MapperScan("com.update.update.dao.freshMapper")
 
@@ -15,4 +20,5 @@ public class UpdateApplication {
 
     }
 
+
 }
diff --git a/src/main/java/com/update/update/controller/freshController.java b/src/main/java/com/update/update/controller/freshController.java
index e1ac79a..153c1ec 100644
--- a/src/main/java/com/update/update/controller/freshController.java
+++ b/src/main/java/com/update/update/controller/freshController.java
@@ -1,7 +1,7 @@
 package com.update.update.controller;
 
 
-import com.update.update.bean.fresh;
+import com.update.update.entity.fresh;
 import com.update.update.util.GJson;
 import org.json.JSONException;
 import org.json.JSONObject;
@@ -62,6 +62,7 @@ public class freshController {
     }
 @RequestMapping(value = "/updating",method = RequestMethod.POST)
     public void updating(HttpServletRequest request, HttpServletResponse response) throws Exception {
-        ServletUtil.createSuccessResponse(200, GJson.toJson(new refreshServiceImpl().new_version()),response);
+        String oldVersionId = request.getParameter("oldVersionId");
+        ServletUtil.createSuccessResponse(200, GJson.toJson(new refreshServiceImpl().new_version(oldVersionId)),response);
 }
 }
diff --git a/src/main/java/com/update/update/dao/freshMapper.java b/src/main/java/com/update/update/dao/freshMapper.java
index 9b674a3..fdb684d 100644
--- a/src/main/java/com/update/update/dao/freshMapper.java
+++ b/src/main/java/com/update/update/dao/freshMapper.java
@@ -1,11 +1,14 @@
 package com.update.update.dao;
 
-import com.update.update.bean.fresh;
+import com.update.update.entity.fresh;
 import org.apache.ibatis.annotations.*;
 
 
+import org.apache.ibatis.jdbc.SQL;
 import org.springframework.stereotype.Component;
 
+import java.util.List;
+
 
 @Component
 @Mapper
@@ -14,16 +17,7 @@ public interface freshMapper {
     int add(fresh learnResouce);
 
 
-    @DeleteProvider(type = fresh.class, method = "deleteByids")
-    int deleteByIds(@Param("ids") String[] ids);
-
-
     @Select("SELECT * FROM fresh ORDER BY id DESC LIMIT 1")
-    @Results(value = {
-            @Result(column = "VersionId", property = "VersionId", javaType = String.class),
-            @Result(property = "apkUrl", column = "apkUrl", javaType = String.class),
-            @Result(property = "updateDescription", column = "updateDescription", javaType = String.class)
-    })
     fresh query();
 
 }
\ No newline at end of file
diff --git a/src/main/java/com/update/update/bean/fresh.java b/src/main/java/com/update/update/entity/fresh.java
similarity index 94%
rename from src/main/java/com/update/update/bean/fresh.java
rename to src/main/java/com/update/update/entity/fresh.java
index 84a24c3..4ccaf71 100644
--- a/src/main/java/com/update/update/bean/fresh.java
+++ b/src/main/java/com/update/update/entity/fresh.java
@@ -1,4 +1,4 @@
-package com.update.update.bean;
+package com.update.update.entity;
 
 public class fresh {
     public String VersionId;
diff --git a/src/main/java/com/update/update/service/freshService.java b/src/main/java/com/update/update/service/freshService.java
index 98d3e53..c44a4c4 100644
--- a/src/main/java/com/update/update/service/freshService.java
+++ b/src/main/java/com/update/update/service/freshService.java
@@ -1,6 +1,6 @@
 package com.update.update.service;
 
-import com.update.update.bean.fresh;
+import com.update.update.entity.fresh;
 
 public interface freshService {
     int add(fresh version);
diff --git a/src/main/java/com/update/update/service/impl/freshServiceImpl.java b/src/main/java/com/update/update/service/impl/freshServiceImpl.java
index b2c16dc..33bde98 100644
--- a/src/main/java/com/update/update/service/impl/freshServiceImpl.java
+++ b/src/main/java/com/update/update/service/impl/freshServiceImpl.java
@@ -1,7 +1,7 @@
 package com.update.update.service.impl;
 
 
-import com.update.update.bean.fresh;
+import com.update.update.entity.fresh;
 import com.update.update.dao.freshMapper;
 import com.update.update.service.freshService;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -10,6 +10,7 @@ import org.springframework.stereotype.Service;
 @Service
 public class freshServiceImpl implements freshService {
 
+    @Autowired
     freshMapper f;
     @Override
     public int add(fresh newOne) {
diff --git a/src/main/java/com/update/update/service/impl/refreshServiceImpl.java b/src/main/java/com/update/update/service/impl/refreshServiceImpl.java
index d1fb345..8efc1a9 100644
--- a/src/main/java/com/update/update/service/impl/refreshServiceImpl.java
+++ b/src/main/java/com/update/update/service/impl/refreshServiceImpl.java
@@ -1,20 +1,17 @@
 package com.update.update.service.impl;
 
 
-import android.app.Application;
-
-import android.content.Context;
-import com.update.update.bean.fresh;
+import com.update.update.entity.fresh;
 import com.update.update.service.refreshService;
-import com.update.update.util.APKVersionCodeUtils;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 @Service
 public class refreshServiceImpl implements refreshService {
 
-    @Autowired
-    freshServiceImpl ser;
+
+    freshServiceImpl ser=new freshServiceImpl();
 
     //version1大返回一个正数，小返回一个负数，相等返回0
     public static int compareVersion(String version1, String version2) throws Exception {
@@ -36,12 +33,10 @@ public class refreshServiceImpl implements refreshService {
         return diff;
     }
 
-    Application application = new Application();
-    Context ass = application.getApplicationContext();
-    String oldVersion = APKVersionCodeUtils.getVerName(ass);
-    String newVersion = ser.query().VersionId;
     @Override
-    public fresh new_version() throws Exception {
+    public fresh new_version(String oldVersion) throws Exception {
+        freshServiceImpl ser=new freshServiceImpl();
+        String newVersion = ser.query().VersionId;
         if (compareVersion(oldVersion, newVersion) < 0){
             return ser.query();
         }
diff --git a/src/main/java/com/update/update/service/refreshService.java b/src/main/java/com/update/update/service/refreshService.java
index 6909b39..bbb685d 100644
--- a/src/main/java/com/update/update/service/refreshService.java
+++ b/src/main/java/com/update/update/service/refreshService.java
@@ -1,8 +1,8 @@
 package com.update.update.service;
 
-import com.update.update.bean.fresh;
+import com.update.update.entity.fresh;
 
 public interface refreshService {
     //判断是否需要更新,比对是否有新的版本
-    public fresh new_version() throws Exception;
+    public fresh new_version(String old_version) throws Exception;
 }
diff --git a/src/main/java/com/update/update/util/APKVersionCodeUtils.java b/src/main/java/com/update/update/util/APKVersionCodeUtils.java
deleted file mode 100644
index ec003e5..0000000
--- a/src/main/java/com/update/update/util/APKVersionCodeUtils.java
+++ /dev/null
@@ -1,24 +0,0 @@
-package com.update.update.util;
-import android.content.Context;
-
-import android.content.pm.PackageManager;
-public class APKVersionCodeUtils {
-
-    /**
-     * 获取版本号名称
-     *
-     * @param context 上下文
-     * @return
-     */
-    public static String getVerName(Context context) {
-        String verName = "";
-        try {
-            verName = context.getPackageManager().
-                    getPackageInfo(context.getPackageName(), 0).versionName;
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-        }
-        return verName;
-    }
-
-}
\ No newline at end of file
diff --git a/src/test/java/com/update/update/controller/freshControllerTest.java b/src/test/java/com/update/update/controller/freshControllerTest.java
index 440570b..51226e9 100644
--- a/src/test/java/com/update/update/controller/freshControllerTest.java
+++ b/src/test/java/com/update/update/controller/freshControllerTest.java
@@ -1,11 +1,31 @@
 package com.update.update.controller;
 
+import com.update.update.dao.freshMapper;
+import com.update.update.entity.fresh;
+import org.apache.ibatis.session.SqlSession;
+import org.apache.ibatis.session.SqlSessionFactory;
 import org.junit.jupiter.api.Test;
 
-class freshControllerTest {
 
+class freshControllerTest {
+    private static SqlSessionFactory sqlSessionFactory;
+    public SqlSession getSqlSession(){
+        return sqlSessionFactory.openSession();
+    }
     @Test
     void addVersion() {
 
     }
+
+    @Test
+    void updating() {
+        SqlSession sqlSession = getSqlSession();
+        try{
+            freshMapper sysUserMapper = sqlSession.getMapper(freshMapper.class);
+            fresh a= sysUserMapper.query();
+            System.out.println(a);
+        }catch (Exception e){
+            e.printStackTrace();
+        }
+    }
 }
\ No newline at end of file